Amino Acids Flashcards
1
Q
What are the 2 methods of protein degradation?
A
1- Protein tagged by ubiquitin, degraded by pro teases
2-taken up by endocytosis and broken down
2
Q
What keto acid is used during trannsamination
A
2 Oxo glutarate
3
Q
Name some ketogenic aa
A
Leucine and lysine
4
Q
How do you get from glutamine to glutamate?
A
Add h2o and nh3 is released
5
Q
How do w convert glutamate into glutamine?
A
Add atp and nh3
6
Q
What aa can transport nitrogen
A
Alanine, glutamate, glutamine, aspartame
7
Q
Why is glutamine important?
A
Safe carrier of nh3
Can carry 2 nh3 to make urea
Delivers nh3 ions to kidney for buffering
8
Q
what are the stages of the othnithine cycle?
A
Ornithine + carbamoyl phosphate - citrulline — arginosuccinate (fumerate made)— arginine (urea produced)
